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Finding the Fourth Proportional to 6,660.96, 9,187.38 and 4,671.96

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Solution

The fourth proportional to 6,660.96, 9,187.38 and 4,671.96 is: 6,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.96 : 9,187.38 = 4,671.96 : x
  2. Step 2: Convert to fraction form
    6,660.96/9,187.38 = 4,671.96/x
  3. Step 3: Cross multiply
    6,660.96x = 9,187.38 × 4,671.96
  4. Step 4: Simplify right side
    6,660.96x = 42,923,071.86
  5. Step 5: Solve for x
    x = 42,923,071.86/6,660.96
  6. Step 6: Final answer
    x = 6,443.98

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.